/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.android.tools.idea.common.surface

import com.android.annotations.concurrency.UiThread
import com.android.tools.idea.common.model.NlComponent
import com.android.tools.idea.common.model.NlModel

/** Interface implemented by listeners for [DesignSurface] events */
interface DesignSurfaceListener {
  /** The set of currently selected components in the given surface changed */
  fun componentSelectionChanged(surface: DesignSurface<*>, newSelection: List<NlComponent>) {}

  /** The current models changed */
  @Deprecated("Use DesignSurface.modelChanged instead.")
  @UiThread
  // TODO(b/352512443): some implementations of this interface still work under the assumption of
  //   having a single model and this needs to be addressed.
  fun modelsChanged(surface: DesignSurface<*>, models: List<NlModel?>) {}
}
